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MCDC21M MICRO WET DUMMY CONNECTOR 21 Pins Underwater Dummy Plug Male

MCDC21M MICRO WET DUMMY CONNECTOR 21 Pins Underwater Dummy Plug Male Hot-Selling MCIL21M. MCBH21F. MCBH21M. MCOM21F. MCOM21M. MCDC21F. MCDC21M. DLSB-F. DLSB-M. MCPBOF21F. MCPBOF21M Applications: Underwater camera and lights (video system) Diver communications ROV systems Submersibles Towed-array cable systems Current meters Animal migration research Food processing equipment

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Description

MCDC21M Micro Circular Dummy Connector — Overview

The MCDC21M is a 21-contact Micro Circular Male dummy connector (protective cap) designed to mate with and seal any unmated 21-contact Micro Circular female connector — whether bulkhead or inline — during storage, transit, and deployment intervals when the working connector is not in use.

Built from the same chloroprene rubber and gold-plated contact materials as the working connectors, the MCDC21M protects contact faces from biofouling, corrosion, and mechanical damage at the same rated depth as the connector it protects. It is an essential component for any subsea deployment program involving the Micro Circular connector series.

21 Contacts Micro Dummy Connector 1,400 Bar Design Depth Chloroprene Body Gold-Plated Contacts

Key Design Features

  • Micro Circular Male dummy connector — seals 21-contact female Micro Circular connector faces against seawater ingress, biofouling, and mechanical damage
  • Same chloroprene rubber construction as working connectors — rated to the same 1,400 Bar design depth and -40°C to +60°C temperature range
  • Gold-plated contacts — preserves the gold contact face of the mated working connector, preventing galvanic corrosion during storage
  • Keyed interface — aligns correctly to the working connector's keying feature; cannot be incorrectly installed
  • Compatible with all 21-contact Micro Circular series bulkhead and inline connectors
  • 500+ mate/demate cycles — repeated installation and removal without degrading the working connector contact face
  • Essential for observatory, mooring, and long-duration deployment programs — protects unused ports during unattended seabed deployments
  • Available from 1 unit, standard 1–2 week lead time

Specifications

Parameter Specification
Contact Positions 21
Type Micro Circular Dummy Connector (Protective Cap)
Gender Male
Design Depth (mated) 1,400 Bar / 20,300 psi
Open Face Pressure 800 Bar / 11,600 psi
Body Material Chloroprene rubber
Contact Material Gold-plated copper alloy
Operating Temperature -40°C to +60°C
Compatible With All 21-contact Micro Circular series BH and IL connectors

Typical Applications

  • Protecting unmated 21-contact Micro Circular bulkhead connectors on AUV and micro-ROV chassis during deck operations
  • Sealing unused junction box Micro Circular ports during long-term seabed observatory deployments
  • Covering 21-contact Micro Circular inline connector faces during instrument storage and servicing
  • Protecting mooring instrument connector faces during surface preparation and deployment
  • Sealing AUV payload connector ports between missions
  • Providing corrosion protection for spare Micro Circular connectors stored in humid environments



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